September weather forecast
Philipsburg, Sint Maarten

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The coastal city of Philipsburg, in Sint Maarten, with a distant view of the mountains, and the Great Salt Pond
The coastal city of Philipsburg, in Sint Maarten, with a distant view of the mountains, and the Great Salt Pond

Weather in September

September signals the transition towards the later part of the year in Philipsburg. Despite the temperature dip to 31°C (87.8°F), it holds a reputation for the highest rainfall of the year, amassing an average of 129mm (5.08"). The city’s climate steers towards a slightly cooler and wetter pattern, still complimented by stable sunshine hours. As the rainy days grow, the fading summer warmth is slowly replaced by the charm of the coming autumn.

Temperature

In Philipsburg, the months of June through October are known for the peak temperatures, reaching an average high of 31°C (87.8°F).

Rainfall

September is the month with the most rainfall. Rain falls for 19 days and accumulates 129mm (5.08") of precipitation.

Sea temperature

September and October, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater.
Note: Water activities in surface temperatures between 25°C (77°F) and 29°C (84.2°F) are seen as exceptional and extremely agreeable for lengthened time spans.

Daylight

The average length of the day in September in Philipsburg is 12h and 14min.
On the first day of the month, sunrise is at 05:57 and sunset at 18:25. On the last day of September, in Philipsburg, Sint Maarten, sunrise is at 06:02 and sunset at 18:01 AST.

Sunshine

January, February, May through July, September through December, with an average of 8h of sunshine, are months with the least sunshine.

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index in Philipsburg. A UV Index of 11, and more, symbolizes an extreme health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 12 in September interprets into the following recommendations:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Even if the day is cloudy, sunscreen with SPF of at least 30 should be applied generously and reapplied often, particularly after swimming or outdoor exercise. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.
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Frequently asked questions

What is the warmest month in Philipsburg?

Philipsburg witnesses its average highest temperatures during June through October, peaking at 31°C (87.8°F).

How hot is it in Philipsburg in September?

In Philipsburg, in September, the average high-temperature is 31°C (87.8°F), and the average low-temperature is 25°C (77°F).

What is the rainiest month in Philipsburg?

September is the month with the most rainfall in Philipsburg, Sint Maarten. Rain falls for 19 days and accumulates 129mm (5.08") of precipitation.

How many days does it rain in September in Philipsburg?

In September, in Philipsburg, the rain falls for 19 days. Throughout September, 129mm (5.08") of precipitation is accumulated.

When is the sea warmest in Philipsburg?

The months with the warmest seawater in Philipsburg, Sint Maarten, are September and October, with an average sea temperature of 29°C (84.2°F).

What is the water temperature in September in Philipsburg?

In Philipsburg, Sint Maarten, the average seawater temperature in September is 29°C (84.2°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in September in Philipsburg?

In Philipsburg, the average day length in September is 12h and 14min.

When is the sunrise / sunset in September in Philipsburg?

In September, on the first day of the month, sunrise is at 05:57 and sunset at 18:25. On the last day of the month, in Philipsburg, sunrise is at 06:02 and sunset at 18:01 AST.

What are the months with the least sunshine in Philipsburg?

The months with the least sunshine in Philipsburg are January, February, May through July, September through December, with an average of 8h of sunshine.

How long on average sun shines in September in Philipsburg?

The average sunshine duration in September in Philipsburg, Sint Maarten, is 8h.

What are the months with the highest UV index in Philipsburg?

March through September, with an average maximum UV index of 12, are months with the highest UV index in Philipsburg, Sint Maarten.

What is the UV index reading in September in Philipsburg?

In Philipsburg, Sint Maarten, the average daily maximum UV index in September is 12. A UV Index estimate of 11, and higher, represents an extreme health vulnerability from unprotected exposure to UV radiation.
Average low temperature
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in September
Philipsburg, Sint Maarten

Average temperature in September - Philipsburg, Sint Maarten
  • Average high temperature in September: 31°C

The warmest months (with the highest average high temperature) are June, July, August, September and October (31°C).
The months with the lowest average high temperature are January, February, March and December (29°C).

  • Average low temperature in September: 25°C

The months with the highest average low temperature are June, July, August, September and October (25°C).
The coldest months (with the lowest average low temperature) are January, February, March and December (23°C).

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Average rainfall in September
Philipsburg, Sint Maarten

Average rainfall in September - Philipsburg, Sint Maarten
  • Average rainfall in September: 129mm

The wettest month (with the highest rainfall) is September (129mm).
The driest months (with the least rainfall) are February and March (43mm).

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Average rainfall days in September
Philipsburg, Sint Maarten

Average rainfall days in September - Philipsburg, Sint Maarten
  • Average rainfall days in September: 19 days

The month with the highest number of rainy days is November (21 days).
The month with the least rainy days is April (12 days).

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Average sea temperature in September
Philipsburg, Sint Maarten

Average sea temperature in September - Philipsburg, Sint Maarten
  • Average sea temperature in September: 29°C

The best months for swimming (with the highest average sea temperature) are September and October (29°C).
The coldest months (with the lowest average sea temperature) are January, February, March and April (26°C).

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Average daylight in September /
Average sunshine in September
Philipsburg, Sint Maarten

Average daylight in September / Average sunshine in September - Philipsburg, Sint Maarten
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).

  • Average sunshine in September: 8h

The months with the most sunshine are March, April and August (Average sunshine: 9h).
The months with the least sunshine are January, February, May, June, July, September, October, November and December (Average sunshine: 8h).

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Average UV index in September
Philipsburg, Sint Maarten

Average UV index in September - Philipsburg, Sint Maarten
  • Average UV index in September: 12

The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 7).

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Philipsburg, Sint Maarten

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